...
- Enter the name of the person you are sharing with & any message then click Send
Check Folder Access
If you want double check who has got access to file or folder
Hover over the file/folder you want to check & click on the 
Select Manage Access
You will see a list of people who can access the file/folder
If you see just icons with no names (like below) click on the down arrow to see the full list
